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分享修改高通默认关机充电电量显示字体为robot 36x64
1、替换bootable/recovery/minui/font_10x18.h字库文件，制作成roboto 36x64大小的字库文件，如何制作出这个字库文件？
2、我用BMfont生成Png文件，然后用gimp转换成gimp_image结构体，利用mkfont.c文件生成font_36x64文件，但显示依然是乱码的，这个字库具体该怎么做？
2、我用BMfont生成Png文件，然后用gimp转换成gimp_image结构体，利用mkfont.c文件生成font_36x64文件，但显示依然是乱码的，这个字库具体该怎么做？
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embrace21soul 2018-03-29
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1、将python脚本mkfonten.py和Inconsolata.ttf字库文件放在同一目录下，特别注意，用来生成字体最好选择等高等宽字体，不然会出现两个文字显示间隙过大
2、执行python mkfonten.py，根据提示输入需要生成的字体大小
3、将生成所需的字库文件
mkfonten.py文件如下
#!/usr/bin/env python
from struct import *
from PIL import Image, ImageDraw, ImageFont, ImageFilter
import sys
print "preparing data"
s = ''
data = ""
n = 0
for i in range(32,128):
s += "%c"%i
data += "{0:#06x}, ".format(i)
n += 1
if ((n%12) == 0):
data += "\n"
print "count:%d" %len(s)
if (len(sys.argv) > 1):
fontsize_en = int(sys.argv[1])
else:
print u"enter font size"
fontsize_en = int(raw_input())
font_name = "Inconsolata.ttf"
font_en = ImageFont.truetype(font_name, fontsize_en)
width_en,height_en = font_en.getsize("W")
top_margin=0
height_spacing=0
height_en=height_en+height_spacing
print "fontsize: %d" %(fontsize_en)
print "font en: %dx%d" %(width_en,height_en)
im_en = Image.new('P', (width_en*len(s), height_en), 0)
text = ImageDraw.Draw(im_en)
#print "painting ascii"
size = ""
for i in range(len(s)):
text.text((i*width_en, top_margin), s[i], 255, font_en)
im_en.save("data_en_%d_%dx%d.png"%(fontsize_en,width_en,height_en))
print "generating png file data_en_%d_%dx%d.png"%(fontsize_en,width_en,height_en)
pixs_en = im_en.load()
pixels = [ ]
width,height = im_en.size
run_count = 1
run_val = ""
for y in range(height):
for x in range(width):
r = (pixs_en[x,y] > 0xC0)
if run_val != "":
val = (0x80 if r else 0x00)
if (val == run_val) & (run_count < 127):
run_count += 1
else:
pixels.append(run_count | run_val)
run_val = val
run_count = 1
else:
run_val = (0x80 if r else 0x00)
pixels.append(run_count | run_val)
pixels.append(0)
print "generating header files font_%d_%dx%d.h" %(fontsize_en,width_en,height_en)
# gen font data
f = open('fonten%d_%dx%d.h'%(fontsize_en,width_en,height_en), 'wb')
f.write("//top_margin=%d height_spacing=%d font_name=%s\n"%(top_margin,height_spacing,font_name))
f.write("struct {\n")
f.write(" unsigned width;\n")
f.write(" unsigned height;\n")
f.write(" unsigned cwidth;\n")
f.write(" unsigned cheight;\n")
f.write(" unsigned char rundata[];\n")
f.write("} font = {\n")
f.write(" .width = %s,\n"%width)
f.write(" .height = %s,\n"%height)
f.write(" .cwidth = %s,\n"%width_en)
f.write(" .cheight = %s,\n"%height_en)
f.write(" .rundata = {\n")
n = 0
for pix in pixels:
f.write(("0x%02x,"%pix))
n += 1
if ((n%15) == 0):
f.write("\n")
f.write("}\n")
f.write('};')
f.close()
